Home / 31,586.91-43,598.30-19,643.46

Finding the Fourth Proportional to 31,586.91, 43,598.30 and 19,643.46

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Solution

The fourth proportional to 31,586.91, 43,598.30 and 19,643.46 is: 27,113.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,586.91 : 43,598.30 = 19,643.46 : x
  2. Step 2: Convert to fraction form
    31,586.91/43,598.30 = 19,643.46/x
  3. Step 3: Cross multiply
    31,586.91x = 43,598.30 × 19,643.46
  4. Step 4: Simplify right side
    31,586.91x = 856,421,363.90
  5. Step 5: Solve for x
    x = 856,421,363.90/31,586.91
  6. Step 6: Final answer
    x = 27,113.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.